Elevator door lock test bench and test method

Abstract

The present invention discloses an elevator door lock test bench and test method, which includes a load-bearing platform, two door lock mounting frames installed on the load-bearing platform, a durability test device, a static test device, a dynamic test device and an electrical control cabinet. The durability test device is a crank rocker mechanism, which drives two door lock mounting frames to perform mechanical and electrical durability tests at the same time; the static test device includes a synchronous belt transmission mechanism and a force sensor assembly, which can apply static force to the door lock and maintain it for a specified time; the dynamic test device is a pendulum mechanism, which simulates the effect of a rigid body falling freely from a certain height, and performs an impact test on the door lock in a locked state through a force-bearing rod; the electrical control cabinet includes a voltage regulating module, a resistance regulating module, an inductance regulating module, a force display control module and a counting module. The test bench can realize four test items of durability, static, dynamic and circuit-breaking capacity of the door lock device, and can perform durability tests on two sets of door locks at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an elevator door lock test bench and a test method. Background Art

[0002] In order to verify the strength and reliability of locking components and electrical components, elevator door lock devices should be subjected to durability tests, static tests, dynamic tests, and circuit breaking capacity tests. In the prior art, the existing door lock test bench cannot simultaneously meet the four test requirements of durability, static, dynamic, and circuit breaking capacity, and can only test a single set of door lock devices at the same time. The elevator type test rules TSG T7007-216 stipulate that if the door lock device is suitable for both AC and DC circuits, AC and DC durability tests should be carried out separately. Therefore, when using the existing door lock test device to conduct durability tests on AC and DC door lock devices, it is necessary to conduct two tests on the same instrument, or use two instruments to conduct the test simultaneously.

[0003] Therefore, it is necessary to improve the existing elevator door test bench. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art and to provide an elevator door lock test bench and test method, which can realize four test items of durability, static, dynamic and circuit breaking capacity of the door lock device, and can perform durability tests on two sets of door locks at the same time.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] An elevator door lock test bench comprises a load-bearing platform, two door lock mounting frames mounted on the load-bearing platform, a durability test device, a static test device, a dynamic test device and an electrical control cabinet;

[0007] The two door lock mounting frames are symmetrically arranged, and each of the door lock mounting frames comprises two upright posts fastened to the load-bearing platform, a top plate fixedly connected to the tops of the two upright posts, a first side plate and a second side plate respectively fixedly connected to the outer sides of the two upright posts, an upper guide shaft and a lower guide shaft connected between the first side plate and the second side plate, a door lock moving end mounting plate slidably connected to the upper guide shaft and the lower guide shaft, two limit baffles arranged on the lower guide shaft, and a linear slide rail connected between the two upright posts; horizontal plates are respectively arranged between the upright posts on the same side of the two door lock mounting frames, and two door lock stationary end mounting plates are threadedly connected to each horizontal plate;

[0008] The durability test device comprises a first reduction motor, a crank, a first connecting rod, a first rocker, a rocker shaft, a second rocker, a second connecting rod, a connecting piece, a guide bushing provided at the middle of the first side plate and the second side plate through a connecting plate, and a moving shaft slidably connected to the guide bushing;

[0009] The static test device comprises a second reduction motor, a reduction device, a bearing seat coaxial with the lower guide shaft, a guide block fastened to the lower part of the first side plate, a sleeve threadedly connected to the bearing seat and the guide block respectively, a lead screw shaft arranged inside the sleeve, a lead screw nut, a compression spring, an end cover, two travel switches installed at the lower part of the sleeve, and a force sensor assembly; two screws are symmetrically arranged on the outer edge of the flange surface of the lead screw nut, and extend outward from the waist-shaped through hole of the sleeve, and trigger the corresponding two travel switches at the end of the travel of the lead screw nut;

[0010] The dynamic test device includes a detachable force-bearing rod, a guide block fastened to the lower part of the second side plate, an L-shaped mounting plate fastened to the upper part of the second side plate, a pendulum hinged to the L-shaped mounting plate, and a limit screw arranged on the L-shaped mounting plate.

[0011] The electrical control cabinet includes a voltage regulating module, a resistance regulating module, an inductance regulating module, a force display control module and a counting module.

[0012] As a preferred solution, the linear slide rail of the door lock mounting frame includes a clamping seat installed on the two columns of the door lock mounting frame, a slide rail mounting plate fastened to the clamping seat, a slide rail fastened to the slide rail mounting plate, a slider slidably connected to the slide rail, an L-shaped bent plate fastened to the slider, a roller installed on the L-shaped bent plate, a limit block arranged in the slide rail groove, and two tension spring pillars and a tension spring respectively arranged in the slide rail groove and on the slider.

[0013] As a preferred solution, a sensor mounting plate is provided on the first side plate or the second side plate of the door lock mounting frame, and a counting sensor is provided on the sensor mounting plate.

[0014] As a preferred solution, the connecting piece of the durability test device is threadedly connected with a counting sensor trigger plate, and the movable shaft is provided with a position-adjustable car door lock push plate, a door knife and a spring mounting plate.

[0015] The elevator door lock durability test method of the elevator door lock test bench comprises the following steps:

[0016] (1) The static end of the elevator door lock is mounted on the static end mounting plate of the door lock, and the movable end of the elevator door lock is mounted on the movable end mounting plate of the door lock. The relative position of the static end and the movable end of the door lock can be roughly adjusted by adjusting the height of the horizontal plate on the column, and the relative position of the static end and the movable end of the door lock can be finely adjusted by adjusting the position of the static end mounting plate of the door lock on the horizontal plate;

[0017] (2) If the test sample is a landing door lock, ① install the second tension spring between the spring mounting plate of the moving shaft and the door lock moving end mounting plate, which provides spring force to reset the door lock; ② adjust the position of the limit baffle on the lower guide shaft so that the limit baffle just contacts the door lock moving end mounting plate when the landing door lock is naturally locked; ③ adjust the position of the spring mounting plate on the moving shaft so that the door knife is always in contact with the door lock roller during the door lock reset process to lift the lock hook; ④ adjust the position of the door knife on the moving shaft to limit the distance between the door knife and the door lock roller when the door knife moves to the limit position after the landing door lock is locked;

[0018] If the test sample is a car door lock, ① install the second tension spring between the tension spring support of the load-bearing platform and the door lock moving end mounting plate, which provides spring force to reset the door lock; ② adjust the position of the limit baffle on the lower guide shaft so that the limit baffle just contacts the door lock moving end mounting plate when the door lock is naturally locked; ③ adjust the installation height of the roller so that it is located in the middle of the car door lock knife; ④ adjust the installation position of the fixed spring support of the linear guide rail so that it has sufficient spring force to lift the door lock hook; ⑤ adjust the installation position of the limit block of the linear guide rail so that when the slider contacts the limit baffle, the roller is located in the horizontal middle of the two door knives of the car door lock, and the roller does not contact the two door knives;

[0019] (3) Select one of the two counting sensors according to the door opening direction of the door lock, and fine-tune the installation position of the counting sensor so that the counting sensor is triggered just when the door lock is locked to ensure accurate counting during the test process;

[0020] (4) Connect the door lock switch to the electrical control cabinet and set the test voltage, test current, test frequency and number of tests;

[0021] (5) Turn on the power, start the test, observe whether the door lock hook is lifted and dropped normally, whether the door lock switch is on and off normally, and adjust the installation position of the door lock as needed.

[0022] The elevator door lock test bench provides an elevator door lock static test method, comprising the following steps:

[0023] (1) Install the elevator door lock on the door lock mounting bracket on one side of the static test device;

[0024] (2) Insert one end of the force sensor assembly into the guide block so that it contacts the groove of the compression spring end cover, and insert the other end into the center hole of the limit baffle;

[0025] (3) Adjust the installation position of the elevator door lock so that one end of the force sensor passes through the center hole of the limit baffle and contacts the installation plate of the movable end of the door lock;

[0026] (4) Set the static force and action time through the electrical control cabinet;

[0027] (5) Start the second reduction motor. Driven by the screw shaft and the compression spring, the end cover applies a static force to the force-bearing rod. After reaching the specified static force, the force is maintained for a set action time. After reaching the set action time, the second reduction motor is reversed and reset.

[0028] (6) Check whether the door lock is deformed or broken in a way that could affect safety.

[0029] The elevator door lock dynamic test method of the elevator door lock test bench is characterized by comprising the following steps:

[0030] (1) Install the elevator door lock on the door lock mounting bracket on one side of the dynamic test device;

[0031] (2) Insert one end of the force-bearing rod into the guide block so that it just touches the pendulum in the natural state, and insert the other end into the center hole of the limit baffle;

[0032] (3) Adjust the installation position of the elevator door lock so that one end of the force-bearing rod passes through the center hole of the limit baffle and just contacts the installation plate of the movable end of the door lock;

[0033] (4) Manually lift the pendulum so that it contacts the limit screw and the pendulum rod is in a horizontal state;

[0034] (5) Release the pendulum and allow it to swing naturally downward. When the pendulum reaches its lowest point, it will hit the load-bearing rod.

[0035] (6) Check whether the door lock is deformed or broken in a way that could affect safety.

[0036] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0037] 1. Two door lock mounting frames are driven by the crank rocker mechanism, and the durability test of two sets of door lock devices can be carried out at the same time;

[0038] 2. Use the push plate to simulate the door knife to drive the floor door lock, and use the push plate and roller to simulate the door lock roller to drive the car door lock. It is applicable to both floor door locks and car door locks.

[0039] 3. The door lock moving end mounting plate of the door lock mounting frame is arranged between the two door lock stationary end mounting plates, so that door locks in both left and right door opening directions can be installed;

[0040] 4. By adjusting the inductance to set the circuit power factor, the AC circuit breaking capacity test power factor requirement of 0.7±0.05 can be met;

[0041] 5. The present invention can also perform static and dynamic tests on door locks: the static test device includes a synchronous belt transmission mechanism and a force sensor assembly, which can apply static force to the door lock and maintain it for a specified time; the dynamic test device is a pendulum mechanism, which can simulate the effect of a 4kg rigid body falling freely from a height of 0.5m, and perform an impact test on the door lock in a locked state. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0043] Figure 1 A three-dimensional diagram of an elevator door lock test bench of the present invention;

[0044] Figure 2 This is a front view of the elevator door lock test bench of the present invention;

[0045] Figure 3 It is a left view of the elevator door lock test bench of the present invention;

[0046] Figure 4 It is a right side view of the elevator door lock test bench of the present invention;

[0047] Figure 5 It is a top view of the elevator door lock test bench of the present invention;

[0048] Figure 6 It is a structural schematic diagram of a linear slide;

[0049] Figure 7 It is a structural schematic diagram of a static test device;

[0050] Figure 8 for Figure 7 A magnified view of part A in FIG.

[0051] Among them: 1- load-bearing platform; 101- tension spring pillar; 2- door lock mounting frame; 201- first side plate; 202- column; 203- top plate; 204- linear slide rail; 2041- slide rail; 2042- slider; 2043- moving spring pillar; 2044- first tension spring; 2045- fixed spring pillar; 2046- limit stopper; 2047- L-shaped bending plate; 2048- roller; 204 9-slide rail mounting plate; 205-door lock moving end mounting plate; 206-upper guide shaft; 207-second side plate; 208-push plate; 209-limit baffle; 210-door knife; 211-lower guide shaft; 212-second tension spring; 213-spring mounting plate; 214-door lock stationary end mounting plate; 215-cross plate; 216-linear bearing; 217-sensor mounting plate; 218-counting sensor; 3-durable Long-term test device; 301-first connecting rod; 302-second rocker; 303-second connecting rod; 304-guide bushing; 305-moving shaft; 306-bearing seat; 307-first reduction motor; 308-rocker shaft; 309-first rocker; 310-trigger plate; 311-connecting piece; 312-connecting plate; 313-crank; 4-static test device; 401-force sensor assembly guide block; 402- The second reduction motor; 403-driven wheel; 404-protective cover; 405-sleeve; 406-bearing seat; 407-screw nut; 408-screw shaft; 409-force sensor assembly; 410-end cover; 411-compression spring; 412-travel switch; 5-dynamic test device; 501-L-shaped mounting plate, 502-limit screw, 503-pendulum; 504-force rod; 505-force rod guide block. DETAILED DESCRIPTION

[0052] In order to facilitate the understanding of the present invention, the present invention is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "upper", "lower", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0053] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in this specification and in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0054] Example

[0055] like Figure 1-8 As shown, this embodiment provides an elevator door lock test bench, including a load-bearing platform 1, two door lock mounting frames 2 installed on the load-bearing platform and symmetrically arranged, an endurance test device 3 arranged on one side of the load-bearing platform 1, a static test device 4 and a dynamic test device 5 arranged on the other side of the load-bearing platform 1, and an electrical control cabinet.

[0056] like Figure 2 As shown, the door lock mounting frame 2 includes two columns 202 fixedly mounted on the load-bearing platform 1, a top plate 203 fixedly connected to the tops of the two columns 202, a first side plate 201 and a second side plate 207 respectively fixedly connected to the outer sides of the two columns 202, an upper guide shaft 206 and a lower guide shaft 211 connected between the first side plate 201 and the second side plate 207, a door lock moving end mounting plate 205 slidably connected to the upper guide shaft 206 and the lower guide shaft 211, two limit baffles 209 arranged on the lower guide shaft 211, and a linear slide rail 204 connected between the two columns 202; horizontal plates 215 are respectively arranged between the columns on the same side of the two door lock mounting frames 2, and each horizontal plate 215 is threadedly connected to two door lock stationary end mounting plates 214.

[0057] like Figure 2 , Figure 5 and Figure 6 The linear slide rail 204 of the door lock mounting frame 2 includes a clamping seat installed on the two columns 202 of the door lock mounting frame 204, a slide rail mounting plate 2049 fixed on the clamping seat, a slide rail 2041 fixed on the slide rail mounting plate 2049, a slider 2042 slidingly connected to the slide rail 2041, an L-shaped bending plate 2047 fixed to the slider 2042, a roller 2048 installed on the L-shaped bending plate 2047, a limit stopper 2046 arranged in the groove of the slide rail 2041, a fixed spring support 2045 and a movable spring support 2043 respectively arranged in the groove of the slide rail 2041 and on the slider 2042, and a first tension spring 2044, and the two ends of the first tension spring 2044 are respectively connected to the fixed spring support 2045 and the movable spring support 2043. A sensor mounting plate 217 in the shape of a cross and two counting sensors 218 mounted on the sensor mounting plate 217 are provided on the first side plate 201 of the door lock mounting frame 2 .

[0058] like Figure 2 and Figure 5The endurance test device 3 includes a first reduction motor 307, a crank 313, a first connecting rod 301, a first rocking arm 309, a rocking arm shaft 308, a second rocking arm 302, a second connecting rod 303, a connecting piece 311, a guide bushing 304 provided at the middle of the first side plate 201 and the second side plate 207 through a connecting plate 312, and a moving shaft 305 slidably connected to the guide bushing 304. The connecting piece 311 of the endurance test device 3 is threadedly connected with a counting sensor trigger plate 310, and the moving shaft 305 is provided with a position-adjustable car door lock push plate 208, a door knife 210 and a spring mounting plate 213.

[0059] like Figure 4 , Figure 7 and Figure 8 The static test device 4 includes a second reduction motor 402, a reduction device, a bearing seat 406 coaxial with the lower guide shaft 211, a guide block 401 fixed to the lower part of the first side plate 201, a sleeve 405 threadedly connected to the bearing seat 406 and the guide block 401, a lead screw shaft 408 arranged inside the sleeve 405, a lead screw nut 407, a compression spring 411, an end cover 410, two travel switches 412 installed at the lower part of the sleeve 405, and a force sensor assembly 409. Two screws are symmetrically arranged on the outer edge of the flange surface of the lead screw nut 407, and extend outward from the waist-shaped through hole of the sleeve 405, and trigger the corresponding two travel switches 412 at the end of the travel of the lead screw nut 405.

[0060] like Figure 4 The dynamic test device 5 includes a force-bearing rod 504, a guide block 505 fixed to the lower part of the second side plate 207, an L-shaped mounting plate 501 fixed to the upper part of the second side plate 207, a pendulum 503 hinged to the L-shaped mounting plate 501, and a limit screw 502 arranged on the L-shaped mounting plate 501.

[0061] The electrical control cabinet includes a voltage regulating module, a resistance regulating module, an inductance regulating module, a force display control module and a counting module. The basic control principle of the electrical control cabinet is as follows: the upper computer is connected to the lower computer through a serial port, and the lower computer is connected to the control board of each module through RJ45. The corresponding control boards of the voltage regulating module, the resistance regulating module and the inductance regulating module are distributed with different numbers of relays. The interface of each relay has been connected to the controlled contactor below through a wire, and the controlled contactor below has been connected to the resistors with different resistance values ​​and the control end of the permanent magnet synchronous motor through a wire. By controlling the on and off of the contactor, not only can the resistors with different resistance values ​​be controlled to be combined in series and parallel to output different resistance values, but also the forward and reverse rotation of the permanent magnet synchronous motor installed on the transformer and inductor can be controlled, and the knob is driven by the permanent magnet synchronous motor to achieve the purpose of adjusting the voltage and inductance. The force display module and the counting module are respectively connected to the force sensor assembly and the counting sensor, and the data is transmitted to the upper computer for display in real time through the communication line.

[0062] The elevator door lock test bench can perform elevator door lock durability test, elevator door lock static test method and elevator door lock dynamic test method. The specific methods are as follows:

[0063] 1. The elevator door lock durability test method includes the following steps:

[0064] (1) The static end of the elevator door lock is mounted on the static end mounting plate of the door lock, and the movable end of the elevator door lock is mounted on the movable end mounting plate of the door lock. The relative position of the static end and the movable end of the door lock can be roughly adjusted by adjusting the height of the horizontal plate on the column, and the relative position of the static end and the movable end of the door lock can be finely adjusted by adjusting the position of the static end mounting plate of the door lock on the horizontal plate;

[0065] (2) If the test sample is a landing door lock, ① install the second tension spring between the spring mounting plate of the movable shaft and the door lock movable end mounting plate, which provides spring force to reset the door lock; ② adjust the position of the limit baffle on the lower guide shaft so that the limit baffle just contacts the door lock movable end mounting plate when the landing door lock is naturally locked; ③ adjust the position of the spring mounting plate on the movable shaft so that the door knife is always in contact with the door lock roller during the door lock reset process to lift the lock hook; ④ adjust the position of the door knife on the movable shaft so that the distance between the door knife and the door lock roller when the door knife moves to the limit position after the landing door lock is locked is about 5 mm. In other embodiments, the distance can be adjusted according to actual conditions;

[0066] If the test sample is a car door lock, ① install the second tension spring between the tension spring support of the load-bearing platform and the door lock moving end mounting plate, which provides spring force to reset the door lock; ② adjust the position of the limit baffle on the lower guide shaft so that the limit baffle just contacts the door lock moving end mounting plate when the door lock is naturally locked; ③ adjust the installation height of the roller so that it is located in the middle of the car door lock knife; ④ adjust the installation position of the fixed spring support of the linear guide rail so that it has sufficient spring force to lift the door lock hook; ⑤ adjust the installation position of the limit block of the linear guide rail so that when the slider contacts the limit baffle, the roller is located in the horizontal middle of the two door knives of the car door lock, and the roller does not contact the two door knives;

[0067] (3) Select one of the two counting sensors according to the door opening direction of the door lock, and fine-tune the installation position of the counting sensor so that the counting sensor is triggered just when the door lock is locked to ensure accurate counting during the test process;

[0068] (4) Connect the door lock switch to the electrical control cabinet and set the test voltage, test current, test frequency and number of tests;

[0069] (5) Turn on the power, start the test, observe whether the door lock hook is lifted and dropped normally, whether the door lock switch is on and off normally, and adjust the installation position of the door lock as needed.

[0070] 2. Static test method for elevator door locks, including the following steps:

[0071] (1) Install the elevator door lock on the door lock mounting bracket on one side of the static test device;

[0072] (2) Insert one end of the force sensor assembly into the guide block so that it contacts the groove of the compression spring end cover, and insert the other end into the center hole of the limit baffle;

[0073] (3) Adjust the installation position of the elevator door lock so that one end of the force sensor passes through the center hole of the limit baffle and contacts the installation plate of the movable end of the door lock;

[0074] (4) Set the static force and action time through the electrical control cabinet; for sliding doors, the static force is 1000N and the action time is 300s. The static force and action time can be adjusted;

[0075] (5) Start the second reduction motor. Driven by the screw shaft and the compression spring, the end cover applies a static force to the force-bearing rod. After reaching the specified static force, the force is maintained for a set action time. After reaching the set action time, the second reduction motor is reversed and reset.

[0076] (6) Check whether the door lock is deformed or broken in a way that could affect safety.

[0077] The dynamic test method of elevator door lock includes the following steps:

[0078] (1) Install the elevator door lock on the door lock mounting bracket on one side of the dynamic test device;

[0079] (2) Insert one end of the force-bearing rod into the guide block so that it just touches the pendulum in the natural state, and insert the other end into the center hole of the limit baffle;

[0080] (3) Adjust the installation position of the elevator door lock so that one end of the force-bearing rod passes through the center hole of the limit baffle and just contacts the installation plate of the movable end of the door lock;

[0081] (4) Manually lift the pendulum so that it contacts the limit screw and the pendulum rod is in a horizontal state;

[0082] (5) Release the pendulum and allow it to swing naturally downward. When the pendulum reaches its lowest point, it will hit the load-bearing rod.

[0083] (6) Check whether the door lock is deformed or broken in a way that could affect safety.

[0084] Elevator door lock breaking capacity test method:

[0085] After the durability test is completed, modify the test voltage, test current, test frequency and number of tests in the electrical control cabinet, and set the power factor; then turn on the power, start the test, and observe whether traces or arcs are generated during the test, and whether any damage that is not conducive to safety occurs.

[0086] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An elevator door lock test bench, characterized in that: It includes a load-bearing platform, two door lock mounting frames, a durability test device, a static test device, a dynamic test device and an electrical control cabinet; The two door lock mounting frames are installed on the load-bearing platform and are symmetrically arranged, and each of the door lock mounting frames includes two columns fastened to the load-bearing platform, a top plate fixedly connected to the tops of the two columns, a first side plate and a second side plate respectively fixedly connected to the outer sides of the two columns, an upper guide shaft and a lower guide shaft connected between the first side plate and the second side plate, a door lock moving end mounting plate slidably connected to the upper guide shaft and the lower guide shaft, two limit baffles arranged on the lower guide shaft, and a linear slide rail connected between the two columns; horizontal plates are respectively arranged between the columns on the same side of the two door lock mounting frames, and two door lock stationary end mounting plates are threadedly connected to each horizontal plate; The durability test device is installed on the load-bearing platform, and includes a first reduction motor, a crank, a first connecting rod, a first rocker, a rocker shaft, a second rocker, a second connecting rod, a connecting piece, a guide bushing arranged at the middle of the first side plate and the second side plate through a connecting plate, and a moving shaft slidably connected to the guide bushing; The static test device is installed on one side of the load-bearing platform, and includes a second reduction motor, a reduction device, a bearing seat coaxial with the lower guide shaft, a guide block fastened to the lower part of the first side plate, a sleeve threadedly connected to the bearing seat and the guide block respectively, a lead screw shaft arranged inside the sleeve, a lead screw nut, a compression spring, an end cover, two travel switches installed at the lower part of the sleeve, and a force sensor assembly; two screws are symmetrically arranged on the outer edge of the flange surface of the lead screw nut, and extend outward from the waist-shaped through hole of the sleeve, and trigger the corresponding two travel switches at the end of the travel of the lead screw nut; The dynamic test device is installed on the other side of the load-bearing platform, and includes a detachable force-bearing rod, a guide block fastened to the lower part of the second side plate, an L-shaped mounting plate fastened to the upper part of the second side plate, a pendulum hinged to the L-shaped mounting plate, and a limit screw set on the L-shaped mounting plate; The electrical control cabinet is installed on the load-bearing platform, and includes a voltage regulating module, a resistance regulating module, an inductance regulating module, a force display control module and a counting module; The linear slide rail of the door lock mounting frame includes a clamping seat mounted on two upright posts of the door lock mounting frame, a slide rail mounting plate fastened to the clamping seat, a slide rail fastened to the slide rail mounting plate, a slider slidably connected to the slide rail, an L-shaped bending plate fastened to the slider, a roller mounted on the L-shaped bending plate, a limit stopper arranged in the slide rail groove, and two tension spring pillars and a tension spring respectively arranged in the slide rail groove and on the slider; A sensor mounting plate is arranged on the first side plate or the second side plate of the door lock mounting frame, and a counting sensor is arranged on the sensor mounting plate.

2. The elevator door lock test bench according to claim 1, characterized in that: The connecting piece of the durability test device is threadedly connected with a counting sensor trigger plate, and the movable shaft is provided with a position-adjustable car door lock push plate, a door knife and a spring mounting plate.

3. An elevator door lock durability test method based on the elevator door lock test bench according to claim 1 or 2, characterized in that: The steps include: (1) The static end of the elevator door lock is mounted on the static end mounting plate of the door lock, and the movable end of the elevator door lock is mounted on the movable end mounting plate of the door lock. The relative position of the static end and the movable end of the door lock can be roughly adjusted by adjusting the height of the horizontal plate on the column, and the relative position of the static end and the movable end of the door lock can be finely adjusted by adjusting the position of the static end mounting plate of the door lock on the horizontal plate; (2) If the test sample is a landing door lock, ① install the second tension spring between the spring mounting plate of the moving shaft and the door lock moving end mounting plate, which provides spring force to reset the door lock; ② adjust the position of the limit baffle on the lower guide shaft so that the limit baffle just contacts the door lock moving end mounting plate when the landing door lock is naturally locked; ③ adjust the position of the spring mounting plate on the moving shaft so that the door knife is always in contact with the door lock roller during the door lock reset process to lift the lock hook; ④ adjust the position of the door knife on the moving shaft to limit the distance between the door knife and the door lock roller when the door knife moves to the limit position after the landing door lock is locked; If the test sample is a car door lock, ① install the second tension spring between the tension spring support of the load-bearing platform and the door lock moving end mounting plate, which provides spring force to reset the door lock; ② adjust the position of the limit baffle on the lower guide shaft so that the limit baffle just contacts the door lock moving end mounting plate when the door lock is naturally locked; ③ adjust the installation height of the roller so that it is located in the middle of the car door lock knife; ④ adjust the installation position of the fixed spring support of the linear guide rail so that it has sufficient spring force to lift the door lock hook; ⑤ adjust the installation position of the limit block of the linear guide rail so that when the slider contacts the limit baffle, the roller is located in the horizontal middle of the two door knives of the car door lock, and the roller does not contact the two door knives; (3) Select one of the two counting sensors according to the door opening direction of the door lock, and fine-tune the installation position of the counting sensor so that the counting sensor is triggered just when the door lock is locked to ensure accurate counting during the test process; (4) Connect the door lock switch to the electrical control cabinet and set the test voltage, test current, test frequency and number of tests; (5) Turn on the power, start the test, observe whether the door lock hook is lifted and dropped normally, whether the door lock switch is on and off normally, and adjust the installation position of the door lock as needed.

4. A static test method for an elevator door lock based on the elevator door lock test bench according to claim 1 or 2, characterized in that: The steps include: (1) Install the elevator door lock on the door lock mounting bracket on one side of the static test device; (2) Insert one end of the force sensor assembly into the guide block so that it contacts the groove of the compression spring end cover, and insert the other end into the center hole of the limit baffle; (3) Adjust the installation position of the elevator door lock so that one end of the force sensor passes through the center hole of the limit baffle and contacts the installation plate of the movable end of the door lock; (4) Set the static force and action time through the electrical control cabinet; (5) Start the second reduction motor. Driven by the screw shaft and the compression spring, the end cover applies a static force to the force-bearing rod. After reaching the specified static force, the force is maintained for a set action time. After reaching the set action time, the second reduction motor is reversed and reset. (6) Check whether the door lock is deformed or broken in a way that could affect safety.

5. An elevator door lock dynamic test method based on the elevator door lock test bench according to claim 1 or 2, characterized in that: The steps include: (1) Install the elevator door lock on the door lock mounting bracket on one side of the dynamic test device; (2) Insert one end of the force-bearing rod into the guide block so that it just touches the pendulum in the natural state, and insert the other end into the center hole of the limit baffle; (3) Adjust the installation position of the elevator door lock so that one end of the force-bearing rod passes through the center hole of the limit baffle and just contacts the installation plate of the moving end of the door lock; (4) Manually lift the pendulum so that it contacts the limit screw and the pendulum rod is in a horizontal state; (5) Release the pendulum and allow it to swing down naturally. When the pendulum reaches the lowest point, it hits the load-bearing rod. (6) Check whether the door lock is deformed or broken in a way that could affect safety.

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